ES424802A1 - Current amplifier - Google Patents

Current amplifier

Info

Publication number
ES424802A1
ES424802A1 ES424802A ES424802A ES424802A1 ES 424802 A1 ES424802 A1 ES 424802A1 ES 424802 A ES424802 A ES 424802A ES 424802 A ES424802 A ES 424802A ES 424802 A1 ES424802 A1 ES 424802A1
Authority
ES
Spain
Prior art keywords
current
amplifier
current amplifier
common
terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES424802A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RCA Corp
Original Assignee
RCA Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RCA Corp filed Critical RCA Corp
Publication of ES424802A1 publication Critical patent/ES424802A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/302—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in bipolar transistor amplifiers
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
    • G05F3/02—Regulating voltage or current
    • G05F3/08—Regulating voltage or current wherein the variable is dc
    • G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
    • G05F3/16—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
    • G05F3/20—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
    • G05F3/26—Current mirrors
    • G05F3/265—Current mirrors using bipolar transistors only

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Nonlinear Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Amplifiers (AREA)

Abstract

A three-terminal current amplifier includes first and second transistors of a first conductivity type. Their respective collector electrodes are connected to input and output terminals of the current amplifier, respectively. Their emitter electrodes are each direct current conductively coupled to the common terminal of the current amplifier. Their base electrodes are coupled to the output circuit of a common-base transistor amplifier having its input circuit connected to the current amplifier input terminal. The common-base transistor amplifier employs a third transistor of a second conductivity type complementary to the first. The current gain of the current amplifier can be made to be independent of the individual current gains of the component transistors.
ES424802A 1973-04-06 1974-03-30 Current amplifier Expired ES424802A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00348723A US3843933A (en) 1973-04-06 1973-04-06 Current amplifier

Publications (1)

Publication Number Publication Date
ES424802A1 true ES424802A1 (en) 1976-05-16

Family

ID=23369252

Family Applications (1)

Application Number Title Priority Date Filing Date
ES424802A Expired ES424802A1 (en) 1973-04-06 1974-03-30 Current amplifier

Country Status (19)

Country Link
US (1) US3843933A (en)
JP (1) JPS5340426B2 (en)
AR (1) AR200053A1 (en)
AT (1) AT343181B (en)
AU (1) AU475518B2 (en)
BE (1) BE813323A (en)
BR (1) BR7402726D0 (en)
CA (1) CA999347A (en)
CH (1) CH577251A5 (en)
DD (1) DD110394A5 (en)
DE (1) DE2416680B2 (en)
ES (1) ES424802A1 (en)
FR (1) FR2224931B1 (en)
GB (1) GB1460117A (en)
IT (1) IT1010859B (en)
NL (1) NL7404280A (en)
SE (1) SE390591B (en)
SU (1) SU528894A3 (en)
ZA (1) ZA742170B (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7307378A (en) * 1973-05-28 1974-12-02
US4008441A (en) * 1974-08-16 1977-02-15 Rca Corporation Current amplifier
US3925718A (en) * 1974-11-26 1975-12-09 Rca Corp Current mirror and degenerative amplifier
US3973215A (en) * 1975-08-04 1976-08-03 Rca Corporation Current mirror amplifier
JPS5326554A (en) * 1976-08-24 1978-03-11 Sony Corp Tr ansistor circuit
US4160944A (en) * 1977-09-26 1979-07-10 Rca Corporation Current amplifier capable of selectively providing current gain
US4166971A (en) * 1978-03-23 1979-09-04 Bell Telephone Laboratories, Incorporated Current mirror arrays
JPS54125950A (en) * 1978-03-24 1979-09-29 Victor Co Of Japan Ltd Current mirror circuit
US4237414A (en) * 1978-12-08 1980-12-02 Motorola, Inc. High impedance output current source
US4230999A (en) * 1979-03-28 1980-10-28 Rca Corporation Oscillator incorporating negative impedance network having current mirror amplifier
JPS56102797U (en) * 1979-12-29 1981-08-12
US4329639A (en) * 1980-02-25 1982-05-11 Motorola, Inc. Low voltage current mirror
JPS57164606A (en) * 1981-04-02 1982-10-09 Matsushita Electric Ind Co Ltd Current mirror circuit
US4381484A (en) * 1981-06-01 1983-04-26 Motorola, Inc. Transistor current source
US4491807A (en) * 1982-05-20 1985-01-01 Rca Corporation FET Negative resistance circuits
JPS59103409A (en) * 1982-12-03 1984-06-14 Toshiba Corp Current mirror circuit
US4851953A (en) * 1987-10-28 1989-07-25 Linear Technology Corporation Low voltage current limit loop
FR2655791A1 (en) * 1989-12-13 1991-06-14 Siemens Automotive Sa Current mirror circuit corrected by the Early effect
FR2684205A1 (en) * 1991-11-22 1993-05-28 Thomson Composants Militaires CURRENT MIRROR WITH LOW RECOPY ERROR.
AUPM457794A0 (en) * 1994-03-21 1994-04-14 Gerard Industries Pty Ltd High impedance power supply
US5804955A (en) * 1996-10-30 1998-09-08 Cherry Semiconductor Corporation Low voltage current limit circuit with temperature insensitive foldback network
US6856188B2 (en) * 2003-05-28 2005-02-15 Texas Instruments Incorporated Current source/sink with high output impedance using bipolar transistors

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3555402A (en) * 1968-12-18 1971-01-12 Honeywell Inc Constant current temperature stabilized signal converter circuit
US3717777A (en) * 1971-03-24 1973-02-20 Motorola Inc Digital to analog converter including improved reference current source

Also Published As

Publication number Publication date
DD110394A5 (en) 1974-12-12
AU475518B2 (en) 1976-08-26
AR200053A1 (en) 1974-10-15
JPS5340426B2 (en) 1978-10-27
FR2224931A1 (en) 1974-10-31
BE813323A (en) 1974-07-31
SE390591B (en) 1976-12-27
NL7404280A (en) 1974-10-08
IT1010859B (en) 1977-01-20
AT343181B (en) 1978-05-10
DE2416680A1 (en) 1974-10-31
DE2416680B2 (en) 1976-09-16
AU6731374A (en) 1975-10-02
BR7402726D0 (en) 1974-12-03
FR2224931B1 (en) 1978-07-07
GB1460117A (en) 1976-12-31
JPS5012954A (en) 1975-02-10
CH577251A5 (en) 1976-06-30
US3843933A (en) 1974-10-22
ZA742170B (en) 1975-03-26
SU528894A3 (en) 1976-09-15
CA999347A (en) 1976-11-02
ATA273674A (en) 1977-09-15

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